Name the buyer’s task
“A digital planner” is a format. “A home baker calculating a quote with ingredients, labor and overhead” is a task. Start with the task, the buyer and the moment when the problem appears.
Write what the buyer already uses. A free spreadsheet, a notebook, a colleague’s process or an existing app may be the real alternative, even if no competing product looks like your proposed file.
Keep evidence traceable
For every observation, save its source, date and exact meaning. A displayed price proves that a product is offered at that price; it does not prove current sales, profitability or demand for your version.
- Observed fact: something you directly saw in a product, policy, buyer account or actual transaction.
- Seller claim: a revenue, audience or results statement made by the seller.
- Estimate: a model or third-party approximation with assumptions.
- Hypothesis: what you still need to test with the intended buyer.
Keep those labels separate. A long-running ad can be a research clue, not proof that the advertiser is making a profit.
Compare complete offers
Record the current price and currency, exact included files, required software, license, support and refund exceptions. A low-priced PDF and a supported database system are not equivalent products.
Check the real buying path. A promotional landing page, a cached search result and checkout may show different prices. Do not assume a coupon works because a banner displays it.
Make a small, bounded test
Choose what evidence would change your mind before you build a large collection. Show a useful sample to people who actually perform the task and observe whether they can use it without your help.
A request for a free template is not proof of willingness to buy. Early purchases can be informative, but a handful of orders does not establish repeatable demand or profitable acquisition.
Respect the material
Study structures and workflows, not someone else’s paid files, images, reviews or distinctive copy. A retail purchase is not a resale license, and a commercial-use label does not necessarily include marketing pictures or editable source files.
The Product Validation Kit organizes these observations. It is not a sales database or an automatic market verdict.